1. (a.) Of or pertaining to a volcano or volcanoes; as, volcanic heat.

2. (a.) Produced by a volcano, or, more generally, by igneous agencies; as, volcanic tufa.

3. (a.) Changed or affected by the heat of a volcano.

agitable bursting combustible detonating edgy emotional emotionally unstable eruptive excitable explodable explosible explosive fierce fiery fulminating furious hasty high-mettled high-spirited high-strung highly emotional hot hot-tempered hotheaded impetuous inflammable irascible irritable mettlesome nervous passionate peppery perturbable prickly quick quick-tempered sensitive short-tempered simmering skittish spunky startlish stormy tempestuous tornadic touchy vehement violent wild